Purocellulose
焦纤维素, 高氮硝化纤维素
🗣️ 情景例句
Don't tell me.
别告诉我。
Do you fly to Dallas on Sunday?
星期日你们有班机去达拉斯吗？
I bought two expensive dictionaries here half and hour ago, but I forgot to take them with me.
半小时以前我在这里买了两本很贵的辞典，但是我忘了拿走。